Trait rome::graph::Graph

pub trait Graph<'g> {
    type BlankNodePtr: BlankNodePtr<'g> + Ord + Clone + 'g;
    type IRIPtr: IRIPtr<'g> + Ord + Clone + 'g;
    type LiteralPtr: LiteralPtr<'g> + Ord + Clone;
    type SPOTriple: Triple<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr> + Ord + Clone;
    type SPOIter: SortedIterator<Item = Self::SPOTriple>;
    type SPORangeIter: SortedIterator<Item = Self::SPOTriple>;
    type OPSTriple: Triple<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr> + Ord + Clone;
    type OPSRangeIter: SortedIterator<Item = Self::OPSTriple>;
    fn iter(&'g self) -> Self::SPOIter;
    fn find_datatype<'a>(
        &'g self, 
        datatype: &'a str
    ) -> Option<<Self::LiteralPtr as LiteralPtr<'g>>::DatatypePtr>;
    fn find_iri<'a>(&'g self, iri: &'a str) -> Option<Self::IRIPtr>;
    fn find_literal<'a>(
        &'g self, 
        literal: &'a str, 
        datatype: &'a str, 
        language: Option<&'a str>
    ) -> Option<Self::LiteralPtr>;
    fn iter_s(
        &'g self, 
        subject: &BlankNodeOrIRI<'g, Self::BlankNodePtr, Self::IRIPtr>
    ) -> Self::SPORangeIter;
    fn iter_s_p(
        &'g self, 
        subject: &BlankNodeOrIRI<'g, Self::BlankNodePtr, Self::IRIPtr>, 
        predicate: &Self::IRIPtr
    ) -> Self::SPORangeIter;
    fn iter_o(
        &'g self, 
        object: &Resource<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr>
    ) -> Self::OPSRangeIter;
    fn iter_o_p(
        &'g self, 
        object: &Resource<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr>, 
        predicate: &Self::IRIPtr
    ) -> Self::OPSRangeIter;
    fn empty_spo_range(&'g self) -> Self::SPORangeIter;
    fn empty_ops_range(&'g self) -> Self::OPSRangeIter;
}

An RDF graph.

An RDF graph contains triples (subject, predicate, object). The triples can be filered and iterated over. This trait can be used to make data accessible as RDF.

Associated Types

type BlankNodePtr: BlankNodePtr<'g> + Ord + Clone + 'g

The blank node type of this graph.

type IRIPtr: IRIPtr<'g> + Ord + Clone + 'g

The IRI type of this graph.

type LiteralPtr: LiteralPtr<'g> + Ord + Clone

The literal type of this graph.

type SPOTriple: Triple<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr> + Ord + Clone

The implementation of triples that is ordered by subject, predicate, object.

type SPOIter: SortedIterator<Item = Self::SPOTriple>

Iterator for iterating over all triples.

type SPORangeIter: SortedIterator<Item = Self::SPOTriple>

Iterator for iterating over a range for triples sorted by subject, predicate, object.

type OPSTriple: Triple<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr> + Ord + Clone

The implementation of triples that is ordered by object, predicate, subject.

type OPSRangeIter: SortedIterator<Item = Self::OPSTriple>

Iterator for iterating over a range for triples sorted by object, predicate, subject.

Required Methods

fn iter(&'g self) -> Self::SPOIter

Iterate over all triples sorted by subject, predicate, object.

fn find_datatype<'a>(
    &'g self,
    datatype: &'a str
) -> Option<<Self::LiteralPtr as LiteralPtr<'g>>::DatatypePtr>

Find the DatatypePtr for the given datatype.

fn find_iri<'a>(&'g self, iri: &'a str) -> Option<Self::IRIPtr>

Find the IRIPtr for the given IRI.

fn find_literal<'a>(
    &'g self,
    literal: &'a str,
    datatype: &'a str,
    language: Option<&'a str>
) -> Option<Self::LiteralPtr>

Find the LiteralPtr for the given literal.

fn iter_s(
    &'g self,
    subject: &BlankNodeOrIRI<'g, Self::BlankNodePtr, Self::IRIPtr>
) -> Self::SPORangeIter

Iterate over the triples that have the given subject.

fn iter_s_p(
    &'g self,
    subject: &BlankNodeOrIRI<'g, Self::BlankNodePtr, Self::IRIPtr>,
    predicate: &Self::IRIPtr
) -> Self::SPORangeIter

Iterate over the triples that have the given subject and predicate.

fn iter_o(
    &'g self,
    object: &Resource<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr>
) -> Self::OPSRangeIter

Iterate over the triples that have the given object.

fn iter_o_p(
    &'g self,
    object: &Resource<'g, Self::BlankNodePtr, Self::IRIPtr, Self::LiteralPtr>,
    predicate: &Self::IRIPtr
) -> Self::OPSRangeIter

Iterate over the triples that have the given object and predicate.

fn empty_spo_range(&'g self) -> Self::SPORangeIter

Iterator that returns no results.

fn empty_ops_range(&'g self) -> Self::OPSRangeIter

Iterator that returns no results.

Implementors